ABAP Select data from SAP table HRWPC_S_EP_MASTERDATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRWPC_S_EP_MASTERDATA table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to HRWPC_S_EP_MASTERDATA. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the HRWPC_S_EP_MASTERDATA table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_HRWPC_S_EP_MASTERDATA TYPE STANDARD TABLE OF HRWPC_S_EP_MASTERDATA,
      WA_HRWPC_S_EP_MASTERDATA TYPE HRWPC_S_EP_MASTERDATA,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <HRWPC_S_EP_MASTERDATA> TYPE HRWPC_S_EP_MASTERDATA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HRWPC_S_EP_MASTERDATA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HRWPC_S_EP_MASTERDATA
  INTO TABLE IT_HRWPC_S_EP_MASTERDATA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRWPC_S_EP_MASTERDATA
*  INTO TABLE @DATA(IT_HRWPC_S_EP_MASTERDATA2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_HRWPC_S_EP_MASTERDATA INDEX 1 INTO DATA(WA_HRWPC_S_EP_MASTERDATA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HRWPC_S_EP_MASTERDATA ASSIGNING <HRWPC_S_EP_MASTERDATA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRWPC_S_EP_MASTERDATA>-ENAME = 1.
<HRWPC_S_EP_MASTERDATA>-MOLGA = 1.
<HRWPC_S_EP_MASTERDATA>-WERKS = 1.
<HRWPC_S_EP_MASTERDATA>-WERKS_TEXT = 1.
<HRWPC_S_EP_MASTERDATA>-BTRTL = 1.

ENDLOOP.

LOOP AT IT_HRWPC_S_EP_MASTERDATA INTO WA_HRWPC_S_EP_MASTERDATA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRWPC_S_EP_MASTERDATA-BTRTL_TEXT, sy-vline,
  WA_HRWPC_S_EP_MASTERDATA-PERSG, sy-vline,
  WA_HRWPC_S_EP_MASTERDATA-PERSG_TEXT, sy-vline,
  WA_HRWPC_S_EP_MASTERDATA-PERSK, sy-vline,
  WA_HRWPC_S_EP_MASTERDATA-PERSK_TEXT, sy-vline,
  WA_HRWPC_S_EP_MASTERDATA-ABKRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRWPC_S_EP_MASTERDATA you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_HRWPC_S_EP_MASTERDATA TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_HRWPC_S_EP_MASTERDATA INTO WA_HRWPC_S_EP_MASTERDATA.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HRWPC_S_EP_MASTERDATA-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRWPC_S_EP_MASTERDATA-KOSTL.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_HRWPC_S_EP_MASTERDATA_STR, 
ENAME TYPE STRING,
MOLGA TYPE STRING,
WERKS TYPE STRING,
WERKS_TEXT TYPE STRING,
BTRTL TYPE STRING,
BTRTL_TEXT TYPE STRING,
PERSG TYPE STRING,
PERSG_TEXT TYPE STRING,
PERSK TYPE STRING,
PERSK_TEXT TYPE STRING,
ABKRS TYPE STRING,
ABKRS_TEXT TYPE STRING,
ANSVH TYPE STRING,
ANSVH_TEXT TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
KOSTL_TEXT TYPE STRING,
ORGEH TYPE STRING,
ORGEH_TEXT TYPE STRING,
STELL TYPE STRING,
STELL_TEXT TYPE STRING,
PLANS TYPE STRING,
PLANS_TEXT TYPE STRING,
CPIND TYPE STRING,
TRFAR TYPE STRING,
TRFAR_TEXT TYPE STRING,
TRFGB TYPE STRING,
TRFGB_TEXT TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
BSGRD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRWPC_S_EP_MASTERDATA_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_HRWPC_S_EP_MASTERDATA_STR-ENAME sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-MOLGA sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-WERKS sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-WERKS_TEXT sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-BTRTL sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-BTRTL_TEXT sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-PERSG sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-PERSG_TEXT sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-PERSK sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-PERSK_TEXT sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-ABKRS sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-ABKRS_TEXT sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-ANSVH sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-ANSVH_TEXT sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-KOKRS sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-KOSTL sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-KOSTL_TEXT sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-ORGEH sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-ORGEH_TEXT sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-STELL sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-STELL_TEXT sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-PLANS sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-PLANS_TEXT sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-CPIND sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-TRFAR sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-TRFAR_TEXT sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-TRFGB sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-TRFGB_TEXT sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-TRFGR sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-TRFST sy-vline 
WA_HRWPC_S_EP_MASTERDATA_STR-BSGRD sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.